- 19 Feb, 2024 17 commits
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Petre Rodan authored
Add triggered buffer feature. Signed-off-by:
Petre Rodan <petre.rodan@subdimension.ro> Link: https://lore.kernel.org/r/20240211075645.28777-7-petre.rodan@subdimension.roSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Petre Rodan authored
Add a mandatory 2ms delay between consecutive chip reads. A Technical Note pdf specifies that the measurement cycle in these chips takes around 1.26ms. By adding this 2ms delay we make sure that we never get stale measurements. For more details, please see "Figure 1" in the pdf below: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/common/documents/sps-siot-sleep-mode-technical-note-008286-1-en-ciid-155793.pdfSigned-off-by:
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Petre Rodan authored
Provide bus-specific technical datasheet in the _i2c.c _spi.c headers instead of the generic one. Signed-off-by:
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Petre Rodan authored
Add includes based on prior reviews from Andy. Signed-off-by:
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Petre Rodan authored
Use signed type to variable holding the result given by div_s64(). Signed-off-by:
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Petre Rodan authored
Add spi-peripheral-props.yaml requirement needed by the spi-max-frequency property. Reviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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andy.shevchenko@gmail.com authored
Use common style for a terminator entry in the ID tables. Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240211201526.1518165-4-andy.shevchenko@gmail.comSigned-off-by:
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andy.shevchenko@gmail.com authored
Update header inclusions to follow IWYU (Include What You Use) principle. Signed-off-by:
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andy.shevchenko@gmail.com authored
Use dev_err_probe() everywhere where it is appropriate. Signed-off-by:
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Nuno Sa authored
Move to the IIO backend framework. Devices supported by adi-axi-adc now register themselves as backend devices. Signed-off-by:
Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240210-iio-backend-v11-7-f5242a5fb42a@analog.comReviewed-by:
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Nuno Sa authored
Convert the driver to use the new IIO backend framework. The device functionality is expected to be the same (meaning no added or removed features). Also note this patch effectively breaks ABI and that's needed so we can properly support this device and add needed features making use of the new IIO framework. Given the lack of features (and devices supported) in the ad9467 driver compared with the ADI out of tree version, we don't expect any user of the upstream driver so no one should notice the ABI breakage. However, if someone is affected by this, ADI will happily support transitioning to the backend framework. Signed-off-by:
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Nuno Sa authored
This is a Framework to handle complex IIO aggregate devices. The typical architecture is to have one device as the frontend device which can be "linked" against one or multiple backend devices. All the IIO and userspace interface is expected to be registers/managed by the frontend device which will callback into the backends when needed (to get/set some configuration that it does not directly control). The basic framework interface is pretty simple: - Backends should register themselves with @devm_iio_backend_register() - Frontend devices should get backends with @devm_iio_backend_get() Signed-off-by:
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Nuno Sa authored
Export iio_dmaengine_buffer_free() and iio_dmaengine_buffer_alloc(). This is in preparation of introducing IIO backends support. This will allow us to allocate a buffer and control it's lifetime from a device different from the one holding the DMA firmware properties. Effectively, in this case the struct device holding the firmware information about the DMA channels is not the same as iio_dev->dev.parent (typical case). While at it, namespace the buffer-dmaengine exports and update the current user of these buffers. Signed-off-by:
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Olivier Moysan authored
Add support for creating device links out of more DT properties. Signed-off-by:
Olivier Moysan <olivier.moysan@foss.st.com> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Nuno Sa authored
'adi,adc-dev' is now deprecated and must not be used anymore. Hence, also remove it from being required. The reason why it's being deprecated is because the axi-adc CORE is now an IIO service provider hardware (IIO backends) for consumers to make use of. Before, the logic with 'adi,adc-dev' was the opposite (it was kind of consumer referencing other nodes/devices) and that proved to be wrong and to not scale. Now, IIO consumers of this hardware are expected to reference it using the io-backends property. Hence, the new '#io-backend-cells' is being added so the device is easily identified as a provider. Reviewed-by:
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Nuno Sa authored
The ad9467 will make use of the new IIO backend framework which is a provider - consumer interface where IIO backends provide services to consumers. As such, and being this device a consumer, add the new generic io-backend property to the bindings. Reviewed-by:
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Matti Vaittinen authored
The loop based 64bit division may run for a long time when dividend is a lot bigger than the divider. Replace the division loop by the div64_u64() which implementation may be significantly faster. Tested-by:
Subhajit Ghosh <subhajit.ghosh@tweaklogic.com> Signed-off-by:
Matti Vaittinen <mazziesaccount@gmail.com> Fixes: 38416c28 ("iio: light: Add gain-time-scale helpers") Link: https://lore.kernel.org/r/Zcn-6e-0-nh2WcfU@drtxq0yyyyyyyyyyyyyby-3.rev.dnainternet.fiSigned-off-by:
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- 17 Feb, 2024 23 commits
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Dimitri Fedrau authored
Add threshold events support for temperature and relative humidity. To enable them the higher and lower threshold registers must be programmed and the higher threshold must be greater then or equal to the lower threshold. Otherwise the event is disabled. Invalid hysteresis values are ignored by the device. There is no further configuration possible. Tested by setting thresholds/hysteresis and turning the heater on/off. Used iio_event_monitor in tools/iio to catch events while constantly displaying temperature and humidity values. Signed-off-by:
Dimitri Fedrau <dima.fedrau@gmail.com> Tested-by:
Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240214085350.19382-4-dima.fedrau@gmail.comSigned-off-by:
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Dimitri Fedrau authored
Add interrupt bindings in example. Signed-off-by:
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Dimitri Fedrau authored
Switch to 16bit register defines and drop the const u8 register pairs. By doing so we change the parameter of functions for reading and writing to the device. Additionally create helper functions that are aware of the new register format and apply them wherever possible. Signed-off-by:
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Naresh Solanki authored
Enable the voltage divider to both receive and provide measurement services by adding #io-channel-cells. This is especially valuable in scenarios where an ADC has an analog frontend, like a voltage divider, and obtaining its raw value isn't interesting. It is desired to get the real voltage before the voltage divider. Signed-off-by:
Naresh Solanki <naresh.solanki@9elements.com> Reviewed-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240206105502.648255-1-naresh.solanki@9elements.comSigned-off-by:
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Basavaraj Natikar authored
On some platforms, ambient color sensors also support the x and y light colors, which represent the coordinates on the CIE 1931 chromaticity diagram. Add light chromaticity x and y. Signed-off-by:
Basavaraj Natikar <Basavaraj.Natikar@amd.com> Signed-off-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20240205185926.3030521-5-srinivas.pandruvada@linux.intel.comSigned-off-by:
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Basavaraj Natikar authored
On some platforms, ambient color sensors also support light color temperature. Add support of light color temperature. Signed-off-by:
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Srinivas Pandruvada authored
Remove hardcoding of values for enum CHANNEL_SCAN_INDEX_INTENSITY and CHANNEL_SCAN_INDEX_ILLUM. Signed-off-by:
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Srinivas Pandruvada authored
Instead of assuming that every channel defined statically by als_channels[] is present, assign dynamically based on presence of the respective usage id in the descriptor. This will allow to register ALS with limited channel support. Append the timestamp as the last channel. Update available_scan_mask to specify all channels which are present. There is no intentional function changes done. Signed-off-by:
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Jesus Gonzalez authored
"10EC5280" is used by several manufacturers like Lenovo, GPD, or AYA (and probably others) in their ACPI table as the ID for the bmi160 IMU. This means the bmi160_i2c driver won't bind to it, and the IMU is unavailable to the user. Manufacturers have been approached on several occasions to try getting a BIOS with a fixed ID, mostly without actual positive results, and since affected devices are already a few years old, this is not expected to change. This patch enables using the bmi160_i2c driver for the bmi160 IMU on these devices. Here is the relevant extract from the DSDT of a GPD Win Max 2 (AMD 6800U model) with the latest firmware 1.05 installed. GPD sees this as WONTFIX with the argument of the device working with the Windows drivers. Device (BMA2) { Name (_ADR, Zero) // _ADR: Address Name (_HID, "10EC5280") // _HID: Hardware ID Name (_CID, "10EC5280") // _CID: Compatible ID Name (_DDN, "Accelerometer") // _DDN: DOS Device Name Name (_UID, One) // _UID: Unique ID Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings { Name (RBUF, ResourceTemplate () { I2cSerialBusV2 (0x0069, ControllerInitiated, 0x00061A80, AddressingMode7Bit, "\\_SB.I2CC", 0x00, ResourceConsumer, , Exclusive, ) }) Return (RBUF) /* \_SB_.I2CC.BMA2._CRS.RBUF */ } ... } Signed-off-by:Jesus Gonzalez <jesusmgh@gmail.com> Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240207195549.37994-2-jesusmgh@gmail.comSigned-off-by:
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Ricardo B. Marliere authored
Now that the driver core can properly handle constant struct bus_type, move the iio_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Suggested-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Ricardo B. Marliere <ricardo@marliere.net> Acked-by:
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Lorenzo Bianconi authored
Add device bindings for asm330lhhxg1 IMU sensor. The lsm6dsr supports the features and functionality provided by the asm330lhhxg1 via identical interfaces and so is a suitable fallback compatible. Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Acked-by:
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Lorenzo Bianconi authored
Add support to STM ASM330LHHXG1 (accelerometer and gyroscope) Mems sensor. The ASM330LHHXG1 sensor can use LSM6DSR as fallback device since LSM6DSR implements all the ASM330LHHXG1 features currently implemented in st_lsm6dsx. Link: https://www.st.com/resource/en/datasheet/asm330lhhxg1.pdfSigned-off-by:
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Lorenzo Bianconi authored
Improve kernel docs and comments reporting supported sensors in a list in order to make more easy to add new devices in the future. Signed-off-by:
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Jonathan Cameron authored
Done to reduce boilerplate and simplify code flow by allowing early returns with the lock automatically released. Reviewed-by:
Nuno Sa <nuno.a@analog.com> Link: https://lore.kernel.org/r/20240128150537.44592-11-jic23@kernel.orgSigned-off-by:
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Jonathan Cameron authored
Reduces boilerplate and allows for simpler to follow direct returns. Reviewed-by:
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Jonathan Cameron authored
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by:
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Jonathan Cameron authored
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by:
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Jonathan Cameron authored
This simplifies error handling paths and generallly removes a bunch of boilerplate. Reviewed-by:
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Jonathan Cameron authored
This simplifies error return paths. Reviewed-by:
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Jonathan Cameron authored
Similar to existing use of guard() in this driver, iio_device_claim_direct_scoped() will ensure that scope based cleanup occurs. Reviewed-by:
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Jonathan Cameron authored
Switching to the iio_device_claim_direct_scoped() for state and to guard() based unlocking of mutexes simplifies error handling by allowing direct returns when an error is encountered. Reviewed-by:
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Jonathan Cameron authored
Given we now have iio_device_claim_direct_scoped() to perform automatic releasing of direct mode at exit from the scope that follows it, this can be used in conjunction with guard(mutex) etc remove a lot of special case handling. Note that in this particular example code, there is no real reason you can't read channels via sysfs at the same time as filling the software buffer. To make it look more like a real driver constrain raw and processed channel reads from occurring whilst the buffer is in use. Reviewed-by:
David Lechner <dlechner@baylibre.com> Reviewed-by:
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Jonathan Cameron authored
Allows use of: iio_device_claim_direct_scoped(return -EBUSY, indio_dev) { } to automatically call iio_device_release_direct_mode() based on scope. Typically seen in combination with local device specific locks which are already have automated cleanup options via guard(mutex)(&st->lock) and scoped_guard(). Using both together allows most error handling to be automated. Reviewed-by:
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